Home / 42,292.72-63,446.40-14,215.52

Finding the Fourth Proportional to 42,292.72, 63,446.40 and 14,215.52

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Solution

The fourth proportional to 42,292.72, 63,446.40 and 14,215.52 is: 21,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,292.72 : 63,446.40 = 14,215.52 : x
  2. Step 2: Convert to fraction form
    42,292.72/63,446.40 = 14,215.52/x
  3. Step 3: Cross multiply
    42,292.72x = 63,446.40 × 14,215.52
  4. Step 4: Simplify right side
    42,292.72x = 901,923,568.13
  5. Step 5: Solve for x
    x = 901,923,568.13/42,292.72
  6. Step 6: Final answer
    x = 21,325.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.